The explorer is running in 'regtest' mode. This saves disk space, but there is limited data.
The code for this application can be found at github.com/pdxrod/blockchain_explorer.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2004
Hash: 1f13ca9fe2bf6b89279ebf4a61bfe565e9ee66764b57e7388a4d038736745e92
Previous block: 6dcc969c17807503911215467f74ce26845ab9f013e26f6018f0b6e2032207e6
Next block: 061b6434554fc2fd4143a77cf42c75a37256e5a79f28e1c15a24d6f0f1bdb246
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159257
Stripped size: 218
Size: 254
Nonce: 6
Merkle root: 7f81a918f2f64cbc6ae22bf729e02efda42f5978e1d5d9d45de35cdec2c5bfcf
Median time: 1719159256
Difficulty: 4.656542373906925e-10
Confirmations: 240
Chainwork: 0000000000000000000000000000000000000000000000000000000000000faa
Bits: 207fffff